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[Fix](inverted index) fix use after free when duplicate key in index dir when index file writer open index #42207

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Oct 22, 2024
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[Fix](inverted index) fix use after free when duplicate key in index dir when index file writer open index #42207

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18 changes: 15 additions & 3 deletions be/src/olap/rowset/segment_v2/inverted_index_file_writer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -51,14 +51,26 @@ Result<DorisFSDirectory*> InvertedIndexFileWriter::open(const TabletIndex* index

if (exists) {
LOG(ERROR) << "try to init a directory:" << local_fs_index_path << " already exists";
return ResultError(Status::InternalError("init_fulltext_index directory already exists"));
return ResultError(
Status::InternalError("InvertedIndexFileWriter::open directory already exists"));
}

bool can_use_ram_dir = true;
auto* dir = DorisFSDirectoryFactory::getDirectory(local_fs, local_fs_index_path.c_str(),
can_use_ram_dir);
_indices_dirs.emplace(std::make_pair(index_meta->index_id(), index_meta->get_index_suffix()),
std::unique_ptr<DorisFSDirectory>(dir));
auto key = std::make_pair(index_meta->index_id(), index_meta->get_index_suffix());
auto [it, inserted] = _indices_dirs.emplace(key, std::unique_ptr<DorisFSDirectory>(dir));
if (!inserted) {
LOG(ERROR) << "InvertedIndexFileWriter::open attempted to insert a duplicate key: ("
<< key.first << ", " << key.second << ")";
LOG(ERROR) << "Directories already in map: ";
for (const auto& entry : _indices_dirs) {
LOG(ERROR) << "Key: (" << entry.first.first << ", " << entry.first.second << ")";
}
return ResultError(Status::InternalError(
"InvertedIndexFileWriter::open attempted to insert a duplicate dir"));
}

return dir;
}

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